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Pengaruh Dosis dan Frekuensi Aplikasi Pupuk Organik Cair (POC) terhadap Pertumbuhan dan Hasil Padi (Oryza sativa L.) Agatha Niis; Nikolas Nik
Savana Cendana Vol 2 No 01 (2017): Savana Cendana (SC) - January 2017
Publisher : Fakultas Pertanian, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (456.907 KB) | DOI: 10.32938/sc.v2i01.77

Abstract

Tujuan Penelitian ini adalah untuk Mengetahui pengaruh pupuk organik cair terhadap pertumbuhan dan hasil padi sawah serta Mengetahui dosis dan frekuensi optimum yang berpengaruh terhadap pertumbuhan dan hasil tanaman padi sawah. Penelitian ini dilaksanakan pada bulan Maret sampai Juni 2016 di daerah persawahan Motamaro Desa Tasain, Kecamatan Raimanuk, Kabupaten Belu, Provinsi Nusa Tenggara Timur dengan menggunakan Rancangan Acak Kelompok (RAK) faktorial 3 x 3 yang diulang 3 kali. Faktor pertama adalah dosis POC (D) terdiri dari tiga aras yaitu dosis 2 L/ ha (D1), 4 L/ha (D2), 6 L/ha (D3). Faktor kedua adalah frekuensi pemberian (F) terdiri dari tiga aras yaitu 2 kali (F1), 4 kali (F2), 6 kali (F3). Hasil penelitian menunjukkan bahwa dosis pupuk organik cair terbaik adalah 6 liter dengan hasil berat kering biji sebesar 8,90 t/ha, sedangkan frekuensi penyemprotan pupuk organik cair tidak berbeda nyata.
EFFECTIVENESS OF CITRONELLA (CYMBOPOGON NARDUS) EXTRACT IN CONTROLLING PESTS AND DISEASES ON SURI 4 SORGHUM IN THE DRYLANDS OF NORTH CENTRAL TIMOR Nikolas Nik; Aloysius Rusae
AGRIMETA : Jurnal Pertanian Berbasis Keseimbangan Ekosistem Vol. 15 No. 1 (2025): Agrimeta: Jurnal Pertanian Berbasis Keseimbangan Ekosistem
Publisher : Fakultas Pertanian dan Bisnis Universitas Mahasaraswati Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/agrimeta.v15i1.12592

Abstract

Sorghum variety Suri 4 is an alternative food crop known for its adaptability to dryland conditions. However, its productivity is often constrained by pest and disease infestations. Lemongrass (Cymbopogon nardus) contains natural active compounds with potential as an environmentally friendly botanical pesticide. This study aims to examine the effects of various concentrations and application frequencies of lemongrass leaf extract on the growth, yield, and levels of pest and disease incidence in Suri 4 sorghum. The research was conducted in Lapeom Village, Insana Barat Subdistrict, North Central Timor Regency, using a two-factor Randomized Block Design (RBD). The first factor was extract concentration (0, 50, 75, and 100 g/l), and the second was spraying frequency (3, 5, and 7 times), resulting in 36 experimental units. Data were analyzed using analysis of variance (ANOVA), followed by Duncan’s Multiple Range Test (DMRT) at a 5% significance level. The results indicated that the application of 100 g/l lemongrass extract combined with seven sprayings yielded the best performance in enhancing plant growth and sorghum yield, while effectively reducing aphid infestation and leaf spot disease incidence. Thus, lemongrass extract is recommended as a biological control strategy in sorghum cultivation under dryland conditions.